There certainly are many worthy charities and usually the family will choose a charitable organization for donations to be given to.  However, experience shows that most people see value in both charitable donations and floral arrangement gifts. There is nothing like the beauty of flowers to soften the sadness and truly express the caring felt by friends for the bereaved. The best way to understand the value of flowers is to attend a funeral where there are none. Then attend one where different floral arrangements have been sent and listen to the families when they see the flowers and read the attached notes.
Ceremony marks every transition in life; weddings, baptisms, graduation, and funerals. We need the service to recognize the importance of the life that has been lived. Through music, poetry, and often scriptures, friends and family can face the reality of the death and begin to cope with grief. The family draws comfort from the gathering of all those people whose lives have been touched by the person who has died.